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-rw-r--r--drivers/staging/dgrp/Kconfig2
-rw-r--r--drivers/staging/dgrp/dgrp_net_ops.c13
-rw-r--r--drivers/staging/dgrp/dgrp_specproc.c85
-rw-r--r--drivers/staging/dgrp/dgrp_tty.c1
4 files changed, 52 insertions, 49 deletions
diff --git a/drivers/staging/dgrp/Kconfig b/drivers/staging/dgrp/Kconfig
index 39f4bb65ec83..e4c41552923a 100644
--- a/drivers/staging/dgrp/Kconfig
+++ b/drivers/staging/dgrp/Kconfig
@@ -1,7 +1,7 @@
config DGRP
tristate "Digi Realport driver"
default n
- depends on SYSFS
+ depends on SYSFS && TTY
---help---
Support for Digi Realport devices. These devices allow you to
access remote serial ports as if they are local tty devices. This
diff --git a/drivers/staging/dgrp/dgrp_net_ops.c b/drivers/staging/dgrp/dgrp_net_ops.c
index 2d1bbfd5b67c..e6018823b9de 100644
--- a/drivers/staging/dgrp/dgrp_net_ops.c
+++ b/drivers/staging/dgrp/dgrp_net_ops.c
@@ -37,6 +37,7 @@
#include <linux/proc_fs.h>
#include <linux/types.h>
#include <linux/string.h>
+#include <linux/device.h>
#include <linux/tty.h>
#include <linux/tty_flip.h>
#include <linux/spinlock.h>
@@ -211,7 +212,7 @@ static void dgrp_input(struct ch_struct *ch)
data_len = (ch->ch_rin - ch->ch_rout) & RBUF_MASK;
/* len is the amount of data we are going to transfer here */
- len = tty_buffer_request_room(tty, data_len);
+ len = tty_buffer_request_room(&ch->port, data_len);
/* Check DPA flow control */
if ((nd->nd_dpa_debug) &&
@@ -232,9 +233,9 @@ static void dgrp_input(struct ch_struct *ch)
(nd->nd_dpa_port == PORT_NUM(MINOR(tty_devnum(tty)))))
dgrp_dpa_data(nd, 1, myflipbuf, len);
- tty_insert_flip_string_flags(tty, myflipbuf,
+ tty_insert_flip_string_flags(&ch->port, myflipbuf,
myflipflagbuf, len);
- tty_flip_buffer_push(tty);
+ tty_flip_buffer_push(&ch->port);
ch->ch_rxcount += len;
}
@@ -2956,9 +2957,9 @@ check_query:
I_BRKINT(ch->ch_tun.un_tty) &&
!(I_IGNBRK(ch->ch_tun.un_tty))) {
- tty_buffer_request_room(ch->ch_tun.un_tty, 1);
- tty_insert_flip_char(ch->ch_tun.un_tty, 0, TTY_BREAK);
- tty_flip_buffer_push(ch->ch_tun.un_tty);
+ tty_buffer_request_room(&ch->port, 1);
+ tty_insert_flip_char(&ch->port, 0, TTY_BREAK);
+ tty_flip_buffer_push(&ch->port);
}
diff --git a/drivers/staging/dgrp/dgrp_specproc.c b/drivers/staging/dgrp/dgrp_specproc.c
index c214078a89e9..73f287f96604 100644
--- a/drivers/staging/dgrp/dgrp_specproc.c
+++ b/drivers/staging/dgrp/dgrp_specproc.c
@@ -81,33 +81,34 @@ static struct dgrp_proc_entry dgrp_mon_table[];
static struct dgrp_proc_entry dgrp_ports_table[];
static struct dgrp_proc_entry dgrp_dpa_table[];
-static ssize_t config_proc_write(struct file *file, const char __user *buffer,
- size_t count, loff_t *pos);
+static ssize_t dgrp_config_proc_write(struct file *file,
+ const char __user *buffer,
+ size_t count, loff_t *pos);
-static int nodeinfo_proc_open(struct inode *inode, struct file *file);
-static int info_proc_open(struct inode *inode, struct file *file);
-static int config_proc_open(struct inode *inode, struct file *file);
+static int dgrp_nodeinfo_proc_open(struct inode *inode, struct file *file);
+static int dgrp_info_proc_open(struct inode *inode, struct file *file);
+static int dgrp_config_proc_open(struct inode *inode, struct file *file);
static struct file_operations config_proc_file_ops = {
.owner = THIS_MODULE,
- .open = config_proc_open,
+ .open = dgrp_config_proc_open,
.read = seq_read,
.llseek = seq_lseek,
.release = seq_release,
- .write = config_proc_write
+ .write = dgrp_config_proc_write,
};
static struct file_operations info_proc_file_ops = {
.owner = THIS_MODULE,
- .open = info_proc_open,
+ .open = dgrp_info_proc_open,
.read = seq_read,
.llseek = seq_lseek,
- .release = seq_release,
+ .release = single_release,
};
static struct file_operations nodeinfo_proc_file_ops = {
.owner = THIS_MODULE,
- .open = nodeinfo_proc_open,
+ .open = dgrp_nodeinfo_proc_open,
.read = seq_read,
.llseek = seq_lseek,
.release = seq_release,
@@ -181,13 +182,13 @@ static struct dgrp_proc_entry dgrp_dpa_table[] = {
void dgrp_unregister_proc(void)
{
- unregister_proc_table(dgrp_table, dgrp_proc_dir_entry);
net_entry_pointer = NULL;
mon_entry_pointer = NULL;
dpa_entry_pointer = NULL;
ports_entry_pointer = NULL;
if (dgrp_proc_dir_entry) {
+ unregister_proc_table(dgrp_table, dgrp_proc_dir_entry);
remove_proc_entry(dgrp_proc_dir_entry->name,
dgrp_proc_dir_entry->parent);
dgrp_proc_dir_entry = NULL;
@@ -231,6 +232,8 @@ static void register_proc_table(struct dgrp_proc_entry *table,
if (table == NULL)
return;
+ if (root == NULL)
+ return;
for (; table->id; table++) {
/* Can't do anything without a proc name. */
@@ -354,7 +357,7 @@ static int dgrp_gen_proc_open(struct inode *inode, struct file *file)
struct dgrp_proc_entry *entry;
int ret = 0;
- de = (struct proc_dir_entry *) PDE(file->f_dentry->d_inode);
+ de = (struct proc_dir_entry *) PDE(file_inode(file));
if (!de || !de->data) {
ret = -ENXIO;
goto done;
@@ -384,7 +387,7 @@ static int dgrp_gen_proc_close(struct inode *inode, struct file *file)
struct proc_dir_entry *de;
struct dgrp_proc_entry *entry;
- de = (struct proc_dir_entry *) PDE(file->f_dentry->d_inode);
+ de = (struct proc_dir_entry *) PDE(file_inode(file));
if (!de || !de->data)
goto done;
@@ -403,21 +406,21 @@ done:
return 0;
}
-static void *config_proc_start(struct seq_file *m, loff_t *pos)
+static void *dgrp_config_proc_start(struct seq_file *m, loff_t *pos)
{
return seq_list_start_head(&nd_struct_list, *pos);
}
-static void *config_proc_next(struct seq_file *p, void *v, loff_t *pos)
+static void *dgrp_config_proc_next(struct seq_file *p, void *v, loff_t *pos)
{
return seq_list_next(v, &nd_struct_list, pos);
}
-static void config_proc_stop(struct seq_file *m, void *v)
+static void dgrp_config_proc_stop(struct seq_file *m, void *v)
{
}
-static int config_proc_show(struct seq_file *m, void *v)
+static int dgrp_config_proc_show(struct seq_file *m, void *v)
{
struct nd_struct *nd;
char tmp_id[4];
@@ -443,13 +446,13 @@ static int config_proc_show(struct seq_file *m, void *v)
}
static const struct seq_operations proc_config_ops = {
- .start = config_proc_start,
- .next = config_proc_next,
- .stop = config_proc_stop,
- .show = config_proc_show
+ .start = dgrp_config_proc_start,
+ .next = dgrp_config_proc_next,
+ .stop = dgrp_config_proc_stop,
+ .show = dgrp_config_proc_show,
};
-static int config_proc_open(struct inode *inode, struct file *file)
+static int dgrp_config_proc_open(struct inode *inode, struct file *file)
{
return seq_open(file, &proc_config_ops);
}
@@ -460,8 +463,9 @@ static int config_proc_open(struct inode *inode, struct file *file)
* write) is treated as an independent request. See the "parse"
* description for more details.
*/
-static ssize_t config_proc_write(struct file *file, const char __user *buffer,
- size_t count, loff_t *pos)
+static ssize_t dgrp_config_proc_write(struct file *file,
+ const char __user *buffer,
+ size_t count, loff_t *pos)
{
ssize_t retval;
char *inbuf, *sp;
@@ -625,7 +629,7 @@ static int parse_write_config(char *buf)
return retval;
}
-static int info_proc_show(struct seq_file *m, void *v)
+static int dgrp_info_proc_show(struct seq_file *m, void *v)
{
seq_printf(m, "version: %s\n", DIGI_VERSION);
seq_puts(m, "register_with_sysfs: 1\n");
@@ -635,27 +639,27 @@ static int info_proc_show(struct seq_file *m, void *v)
return 0;
}
-static int info_proc_open(struct inode *inode, struct file *file)
+static int dgrp_info_proc_open(struct inode *inode, struct file *file)
{
- return single_open(file, info_proc_show, NULL);
+ return single_open(file, dgrp_info_proc_show, NULL);
}
-static void *nodeinfo_start(struct seq_file *m, loff_t *pos)
+static void *dgrp_nodeinfo_start(struct seq_file *m, loff_t *pos)
{
return seq_list_start_head(&nd_struct_list, *pos);
}
-static void *nodeinfo_next(struct seq_file *p, void *v, loff_t *pos)
+static void *dgrp_nodeinfo_next(struct seq_file *p, void *v, loff_t *pos)
{
return seq_list_next(v, &nd_struct_list, pos);
}
-static void nodeinfo_stop(struct seq_file *m, void *v)
+static void dgrp_nodeinfo_stop(struct seq_file *m, void *v)
{
}
-static int nodeinfo_show(struct seq_file *m, void *v)
+static int dgrp_nodeinfo_show(struct seq_file *m, void *v)
{
struct nd_struct *nd;
char hwver[8];
@@ -697,13 +701,13 @@ static int nodeinfo_show(struct seq_file *m, void *v)
static const struct seq_operations nodeinfo_ops = {
- .start = nodeinfo_start,
- .next = nodeinfo_next,
- .stop = nodeinfo_stop,
- .show = nodeinfo_show
+ .start = dgrp_nodeinfo_start,
+ .next = dgrp_nodeinfo_next,
+ .stop = dgrp_nodeinfo_stop,
+ .show = dgrp_nodeinfo_show,
};
-static int nodeinfo_proc_open(struct inode *inode, struct file *file)
+static int dgrp_nodeinfo_proc_open(struct inode *inode, struct file *file)
{
return seq_open(file, &nodeinfo_ops);
}
@@ -773,14 +777,11 @@ static int dgrp_remove_nd(struct nd_struct *nd)
dgrp_remove_node_class_sysfs_files(nd);
}
- if (nd->nd_mon_de)
- unregister_dgrp_device(nd->nd_mon_de);
+ unregister_dgrp_device(nd->nd_mon_de);
- if (nd->nd_ports_de)
- unregister_dgrp_device(nd->nd_ports_de);
+ unregister_dgrp_device(nd->nd_ports_de);
- if (nd->nd_dpa_de)
- unregister_dgrp_device(nd->nd_dpa_de);
+ unregister_dgrp_device(nd->nd_dpa_de);
dgrp_tty_uninit(nd);
diff --git a/drivers/staging/dgrp/dgrp_tty.c b/drivers/staging/dgrp/dgrp_tty.c
index 51d3ed3dca27..654f6010b473 100644
--- a/drivers/staging/dgrp/dgrp_tty.c
+++ b/drivers/staging/dgrp/dgrp_tty.c
@@ -39,6 +39,7 @@
#include <linux/slab.h>
#include <linux/tty.h>
#include <linux/tty_flip.h>
+#include <linux/device.h>
#include <linux/sched.h>
#include <linux/uaccess.h>
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.